Oil & Gas
| Tue 27 Jan 2026
Beijing, Jan. 28 -- State Intellectual Property Office of China has released PetroChina patent application for Needle Coke and Preparation Method Thereof. This invention was developed by Li Shengping, Cao Yuting, Ge Shaohui, Liu Yindong, Wang Luhai, Qi Chuanlei, Yu Zhimin, Wang Litao, Chen Zhuo and Huang Chongzhi.
The patent ap..